Home / 2,227.85-3,073.65-1,387.87

Finding the Fourth Proportional to 2,227.85, 3,073.65 and 1,387.87

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Solution

The fourth proportional to 2,227.85, 3,073.65 and 1,387.87 is: 1,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.85 : 3,073.65 = 1,387.87 : x
  2. Step 2: Convert to fraction form
    2,227.85/3,073.65 = 1,387.87/x
  3. Step 3: Cross multiply
    2,227.85x = 3,073.65 × 1,387.87
  4. Step 4: Simplify right side
    2,227.85x = 4,265,818.94
  5. Step 5: Solve for x
    x = 4,265,818.94/2,227.85
  6. Step 6: Final answer
    x = 1,914.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.